I mean, now that MJ and Prince are gone of course. RIP
VIEWS sales speak for themselves, but he also just had 3 global hits in a row. Beiber is the only other guy you could argue, but he seems to be back to his old habits and probably won't secure the legacy Drake has. No shade, but the drugs will catch up to Justin soon enough.
Drake only gets stronger each era. He's already the hip hop King, but I'd say he's the closest thing we have to a King of Pop today.